Buyers Guides

Natural stone cladding

Construction

The production process for Lithodecor Airtec Stone panels involves laminating thin slabs of natural stone onto a carrier panel. The carrier panels, made from a specially developed lightweight concrete, are used for fixing and load transfer. Since the physical characteristics of the carrier and the laminated material are very similar, the layers are a perfect combination and protect the façade against all types of weather.

Size

The general building inspectorate approval for Lithodecor natural stone lightweight façades covers panel sizes up to 3.8m high and individual panel areas up to 4.7m2. These sizes are impossible to produce using classic natural-stone façade systems on account of their weight and the size of the block stone prior to cutting.

Weight

Airtec Stone represents a weight-saving of up to 66% compared with a conventional stone façade. This is a major advantage, especially when refurbishing older properties where the supporting structure has limited load-bearing capacity. Existing façades can be replaced or over-clad without making costly structural changes. This aspect is hugely beneficial for buildings originally erected in the 50s, 60s and 70s, and for vertical expansion projects.

Bespoke parts

Due to the material properties of the composite panel, it is possible to manufacture three-dimensional shaped parts, such as corners, angles and U-sections with a monolithic appearance. This process involves mitring the composite panels, bonding them without a visible joint and securing them by mechanical means. Cantilevered panels up to 400mm in length can be attached to a mother panel.

Overhangs

Classic stone façades usually extend approximately 180–220mm beyond the existing structure. The shearing force grows disproportionately if the overhang is any greater and requires the installation of elaborate and costly stainless-steel base frames. Such projects are frequently impossible to implement with classic natural stone systems. Because of their light weight, Lithodecor composite panels make much greater moment arms possible with an optimised base frame.

Impact resistance

The sandwich construction of natural stone, lightweight concrete, special adhesive and mesh guarantees maximum impact resistance. Tests carried out on structural elements confirm that the maximum loading requirements are met. Unlike classic stone façades the anchor bolts cannot work loose.

Approval

Lithodecor natural-stone lightweight façades are approved by European Agrèment Certification. International construction product approvals have also been obtained, including ones in the UK (CWCT). The monitored and certified production processes guarantee maximum reliability

Glass cladding

Construction

The manufacture of Lithodecor Airtec Glass involves slim glass panels laminated to a specially developed lightweight concrete carrier. The carrier panels are used for fixing and load transfer.

Size

The general building-inspectorate approval for the Lithodecor lightweight glass façade covers panel sizes up to 3.80m high and individual panel areas of up to 4.7m2. Panels can be manufactured with openings, drilled holes, notches etc.

Design

The Airtec Glass system ensures even large glass panels can be attached with invisible fixings. The almost unlimited choice of colour, printing and finish cater for almost any design preference.

Maximum stability

The sandwich composition of these materials ensures maximum stability during transportation, installation and use. The residual load capacity achieved as a result of the composite structure, offers maximum protection against risks such as sections falling off the façade as a result of damage, e.g. external influence.

Approval

Lithodecor glass façades have passed all the necessary durability and fire protection tests and are approved for use in the UK and Germany plus many other countries. The monitored and certified manufacturing processes guarantee maximum safety.

Installation guides

Natural stone cladding

In a ventilated system the composite panels are fixed to a standard aluminium base frame with special aluminium clips. The load is transferred from the panel to the clips via specially developed ceramic discs that are bonded onto the carrier panel with an approved adhesive. The number of fixing points is dependent on the size and weight of the façade panels or shaped parts.

Glass cladding

In a ventilated system the composite panels are fixed to a standard aluminium base frame with special aluminium clips. The load is transferred from the panel to the clips via specially developed ceramic discs bonded into the base panel with an approved adhesive. The number of fixing points is dependent on the size and weight of the façade panels or shaped parts.